Altair Accelerator Plus

2024.1.1

Home
Accelerator Plus User Guide
Accelerator Plus is a high-performance hierarchical scheduler designed for distributed High Performance Computing (HPC) environments.
Submit Jobs to Accelerator Plus

What's New
Accelerator Plus Overview
Accelerator Plus Tutorials
Accelerator Plus User Guide
Accelerator Plus Administrator Guide

Index

2024.1.1

Altair Accelerator Plus

What's New
View new features for Accelerator Plus 2024.1.1.
Accelerator Plus Overview
Accelerator Plus is a high-performance hierarchical scheduler designed for distributed High Performance Computing (HPC) environments.
Accelerator Plus Tutorials
Currently there are no Accelerator Plus tutorials available.
Accelerator Plus User Guide
Accelerator Plus is a high-performance hierarchical scheduler designed for distributed High Performance Computing (HPC) environments.
- Use Accelerator Plus Help
  Accelerator Plus documentation is available in HTML and PDF format.
- Accelerator Plus Quick Start
  Accelerator Plus has two main commands, wx and wxmgr.
- Command Line Interface
- User Shell Setup
  To set up your user shell with Accelerator Plus you need to know where the Altair Accelerator software has been installed.
- Running a Job
  This section summarizes how to submit and run a job.
- Submit Jobs to Accelerator Plus
  - Queue Selection
    There may be multiple instances of Accelerator Plus running at a given site. You choose which one to use with the variable NC_QUEUE, which by the way is the same variable also used to select the instance of Accelerator.
  - Submit Jobs with CLI Commands
    This chapter provides examples of submitting jobs using CLI (command line interface) commands.
  - Job Arrays
    Using an array provides the option of submitting multiple jobs in a specific order.
  - Environment Control
    Setting the environment is critical for correct job execution. Accelerator provides two methods to control the execution environment.
  - Pre-Command and Post-Command Job Conditions
    When a job is being submitted, a pre-condition and/or a post-condition can be specified.
  - Use Jobclasses
  - Choose the FairShare Group
    While Accelerator Plus supports the use of FairShare groups, their utility depends upon the underlying batch system.
  - Job Submission Arguments
    Job submission can be affected by the value of the optional variables NC_RUN_ARGS and NC_RUN_ARGS, which specify a list of arguments that are pre-pended and appended to the argument list passed to the submission command.
  - Priority
    The scheduling priority affects the order in which the jobs are scheduled. The range is 1 to 15.
- Modify Running Jobs
- Monitor the Workload
- Manage Jobs
  Accelerator Plus provides several commands of job controls, including wait, stop, cleaning and debugging.
- Debug Jobs without Running Accelerator Plus
  On occasion, jobs that run successfully outside of Accelerator Plus fail when run through Accelerator Plus. When this occurs, mostly likely the setups are not the same: the environment, inputs or other parameters may be different, a misconfiguration or there is a problem with NFS.
- LSF Emulation
  This document is intended for those who have been using the Platform LSF batch system and are now moving to using Accelerator Plus on top of the LSF batch system.
Accelerator Plus Administrator Guide
This guide is written for the Accelerator Plus system administrator who needs to configure and manage one or more Accelerator Plus instances.

View All Altair Accelerator Help

Altair Accelerator Plus

2024.1.1

Home
Accelerator Plus User Guide
Accelerator Plus is a high-performance hierarchical scheduler designed for distributed High Performance Computing (HPC) environments.
Submit Jobs to Accelerator Plus

What's New
Accelerator Plus Overview
Accelerator Plus Tutorials
Accelerator Plus User Guide
Accelerator Plus Administrator Guide

Index

Submit Jobs to Accelerator Plus

Queue Selection
There may be multiple instances of Accelerator Plus running at a given site. You choose which one to use with the variable NC_QUEUE, which by the way is the same variable also used to select the instance of Accelerator.
Submit Jobs with CLI Commands
This chapter provides examples of submitting jobs using CLI (command line interface) commands.
Job Arrays
Using an array provides the option of submitting multiple jobs in a specific order.
Environment Control
Setting the environment is critical for correct job execution. Accelerator provides two methods to control the execution environment.
Pre-Command and Post-Command Job Conditions
When a job is being submitted, a pre-condition and/or a post-condition can be specified.
Use Jobclasses
Choose the FairShare Group
While Accelerator Plus supports the use of FairShare groups, their utility depends upon the underlying batch system.
Job Submission Arguments
Job submission can be affected by the value of the optional variables NC_RUN_ARGS and NC_RUN_ARGS, which specify a list of arguments that are pre-pended and appended to the argument list passed to the submission command.
Priority
The scheduling priority affects the order in which the jobs are scheduled. The range is 1 to 15.

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